Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ModelicaTest_3.2.3_ModelicaTest.MultiBody.Parts.Rotor1D.GearConstraint.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 3.2.3+maint.om/package.mo", uses=false) Using package ModelicaTest with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 3.2.3+maint.om/package.mo) Using package Modelica with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo) Using package Complex with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Running command: translateModel(ModelicaTest.MultiBody.Parts.Rotor1D.GearConstraint,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|gearConstraint.actuatedRevolute_b.phi|gearConstraint.actuatedRevolute_b.w|inertia2.phi|inertia2.w",fileNamePrefix="ModelicaTest_3.2.3_ModelicaTest.MultiBody.Parts.Rotor1D.GearConstraint") translateModel(ModelicaTest.MultiBody.Parts.Rotor1D.GearConstraint,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|gearConstraint.actuatedRevolute_b.phi|gearConstraint.actuatedRevolute_b.w|inertia2.phi|inertia2.w",fileNamePrefix="ModelicaTest_3.2.3_ModelicaTest.MultiBody.Parts.Rotor1D.GearConstraint") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001218/0.001218, allocations: 113.5 kB / 17.08 MB, free: 5.961 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001304/0.001304, allocations: 198.4 kB / 18.02 MB, free: 5.047 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.429/1.429, allocations: 205.1 MB / 223.9 MB, free: 12.22 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 3.2.3+maint.om/package.mo): time 0.2098/0.2098, allocations: 43.52 MB / 314.8 MB, free: 452 kB / 254.1 MB Notification: Modelica requested package Complex of version 3.2.3. Complex 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Modelica requested package ModelicaServices of version 3.2.3. ModelicaServices 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.001651/0.001651, allocations: 69.47 kB / 442.5 MB, free: 5.641 MB / 318.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1207/0.1224, allocations: 57.79 MB / 0.4885 GB, free: 11.77 MB / 382.1 MB Notification: Performance of NFInst.instantiate(ModelicaTest.MultiBody.Parts.Rotor1D.GearConstraint): time 0.01478/0.1372, allocations: 14.27 MB / 0.5025 GB, free: 13.44 MB / 398.1 MB Notification: Performance of NFInst.instExpressions: time 0.009997/0.1473, allocations: 4.661 MB / 0.507 GB, free: 8.762 MB / 398.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.003158/0.1505, allocations: 95.69 kB / 0.5071 GB, free: 8.668 MB / 398.1 MB Notification: Performance of NFTyping.typeComponents: time 0.007943/0.1584, allocations: 4.233 MB / 0.5113 GB, free: 4.422 MB / 398.1 MB Notification: Performance of NFTyping.typeBindings: time 0.006651/0.1652, allocations: 2.256 MB / 0.5135 GB, free: 2.156 MB / 398.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.002495/0.1677, allocations: 0.932 MB / 0.5144 GB, free: 1.223 MB / 398.1 MB Notification: Performance of NFFlatten.flatten: time 0.008536/0.1763, allocations: 5.886 MB / 0.5201 GB, free: 11.32 MB / 414.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.00782/0.1842, allocations: 5.309 MB / 0.5253 GB, free: 5.945 MB / 414.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.004407/0.1886, allocations: 2.208 MB / 0.5275 GB, free: 3.73 MB / 414.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.004944/0.1936, allocations: 2.94 MB / 0.5303 GB, free: 0.7812 MB / 414.1 MB Notification: Performance of NFPackage.collectConstants: time 0.002052/0.1957, allocations: 496 kB / 0.5308 GB, free: 304 kB / 414.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.266/0.4617, allocations: 1.364 MB / 0.5321 GB, free: 12.6 MB / 414.1 MB Notification: Performance of NFScalarize.scalarize: time 0.004595/0.4663, allocations: 2.656 MB / 0.5347 GB, free: 12.6 MB / 414.1 MB Notification: Performance of NFVerifyModel.verify: time 0.008718/0.4751, allocations: 3.008 MB / 0.5377 GB, free: 11.68 MB / 414.1 MB Notification: Performance of NFConvertDAE.convert: time 0.01788/0.493, allocations: 9.559 MB / 0.547 GB, free: 10.4 MB / 414.1 MB Notification: Performance of FrontEnd - DAE generated: time 7.945e-06/0.4931, allocations: 1.5 kB / 0.547 GB, free: 10.4 MB / 414.1 MB Notification: Performance of FrontEnd: time 2.344e-06/0.4931, allocations: 0 / 0.547 GB, free: 10.4 MB / 414.1 MB Notification: Performance of Transformations before backend: time 0.000494/0.4936, allocations: 1.031 kB / 0.547 GB, free: 10.4 MB / 414.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 1846 * Number of variables: 1846 Notification: Performance of Generate backend data structure: time 0.02464/0.5182, allocations: 6.346 MB / 0.5532 GB, free: 7.965 MB / 414.1 MB Notification: Performance of prepare preOptimizeDAE: time 5.68e-05/0.5183, allocations: 13.98 kB / 0.5532 GB, free: 7.961 MB / 414.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01436/0.5327, allocations: 2.612 MB / 0.5558 GB, free: 7.598 MB / 414.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.01325/0.546, allocations: 4.045 MB / 0.5597 GB, free: 6.238 MB / 414.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.000726/0.5468, allocations: 314.6 kB / 0.56 GB, free: 6.129 MB / 414.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.003833/0.5506, allocations: 444.3 kB / 0.5604 GB, free: 6.012 MB / 414.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.03207/0.5827, allocations: 12.24 MB / 0.5724 GB, free: 14.87 MB / 430.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 0.0004291/0.5832, allocations: 59.05 kB / 0.5725 GB, free: 14.85 MB / 430.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.002626/0.5858, allocations: 195.8 kB / 0.5726 GB, free: 14.75 MB / 430.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.004262/0.5901, allocations: 2.207 MB / 0.5748 GB, free: 13.92 MB / 430.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0251/0.6153, allocations: 10.53 MB / 0.5851 GB, free: 5.191 MB / 430.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.08072/0.696, allocations: 47.35 MB / 0.6313 GB, free: 5.113 MB / 478.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.01251/0.7086, allocations: 4.597 MB / 0.6358 GB, free: 396 kB / 478.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.004699/0.7134, allocations: 2.644 MB / 0.6384 GB, free: 13.73 MB / 494.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.02196/0.7354, allocations: 10.45 MB / 0.6486 GB, free: 3.184 MB / 494.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 6.76e-05/0.7355, allocations: 53 kB / 0.6486 GB, free: 3.125 MB / 494.1 MB Notification: Performance of pre-optimization done (n=192): time 8.446e-06/0.7355, allocations: 0 / 0.6486 GB, free: 3.125 MB / 494.1 MB Notification: Performance of matching and sorting (n=218): time 0.06962/0.8051, allocations: 21 MB / 0.6692 GB, free: 14.09 MB / 0.5137 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.000135/0.8053, allocations: 208.5 kB / 0.6694 GB, free: 13.85 MB / 0.5137 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.01162/0.8169, allocations: 4.827 MB / 0.6741 GB, free: 9.016 MB / 0.5137 GB Notification: Performance of collectPreVariables (initialization): time 0.0007769/0.8178, allocations: 57.7 kB / 0.6741 GB, free: 8.953 MB / 0.5137 GB Notification: Performance of collectInitialEqns (initialization): time 0.003698/0.8215, allocations: 3.725 MB / 0.6778 GB, free: 5.23 MB / 0.5137 GB Notification: Performance of collectInitialBindings (initialization): time 0.001574/0.8231, allocations: 0.8239 MB / 0.6786 GB, free: 4.414 MB / 0.5137 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.004888/0.828, allocations: 1.392 MB / 0.6799 GB, free: 3.012 MB / 0.5137 GB Notification: Performance of setup shared object (initialization): time 0.0001081/0.8281, allocations: 316.7 kB / 0.6802 GB, free: 2.703 MB / 0.5137 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.005072/0.8332, allocations: 2.578 MB / 0.6827 GB, free: 124 kB / 0.5137 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.008258/0.8415, allocations: 6.557 MB / 0.6891 GB, free: 7.68 MB / 0.5294 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01321/0.8548, allocations: 9.802 MB / 0.6987 GB, free: 12.5 MB / 0.545 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 0.0001597/0.855, allocations: 40 kB / 0.6988 GB, free: 12.46 MB / 0.545 GB Notification: Performance of matching and sorting (n=896) (initialization): time 0.02382/0.8788, allocations: 10.25 MB / 0.7088 GB, free: 2.531 MB / 0.545 GB Notification: Performance of prepare postOptimizeDAE: time 0.0001774/0.879, allocations: 64 kB / 0.7088 GB, free: 2.469 MB / 0.545 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0002526/0.8793, allocations: 140 kB / 0.709 GB, free: 2.332 MB / 0.545 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.005085/0.8844, allocations: 1.622 MB / 0.7105 GB, free: 0.7031 MB / 0.545 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005757/0.8902, allocations: 1.56 MB / 0.7121 GB, free: 15.14 MB / 0.5606 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01447/0.9047, allocations: 10.27 MB / 0.7221 GB, free: 4.59 MB / 0.5606 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.006593/0.9113, allocations: 383.5 kB / 0.7225 GB, free: 4.215 MB / 0.5606 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001643/0.913, allocations: 408 kB / 0.7229 GB, free: 3.816 MB / 0.5606 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 634 * Number of states: 0 () * Number of discrete variables: 45 (fixed.color[3],fixed.color[2],fixed.color[1],torque1.connectionLineColor[3],torque1.connectionLineColor[2],torque1.connectionLineColor[1],torque1.torqueColor[3],torque1.torqueColor[2],torque1.torqueColor[1],cyl2.color[3],cyl2.color[2],cyl2.color[1],cyl2.body.sphereColor[3],cyl2.body.sphereColor[2],cyl2.body.sphereColor[1],cyl1.color[3],cyl1.color[2],cyl1.color[1],cyl1.body.sphereColor[3],cyl1.body.sphereColor[2],cyl1.body.sphereColor[1],world.gravityArrowColor[3],world.gravityArrowColor[2],world.gravityArrowColor[1],world.axisColor_x[3],world.axisColor_x[2],world.axisColor_x[1],world.groundColor[3],world.groundColor[2],world.groundColor[1],world.gravitySphereColor[3],world.gravitySphereColor[2],world.gravitySphereColor[1],gearConstraint.fixedTranslation2.color[3],gearConstraint.fixedTranslation2.color[2],gearConstraint.fixedTranslation2.color[1],gearConstraint.fixedTranslation1.color[3],gearConstraint.fixedTranslation1.color[2],gearConstraint.fixedTranslation1.color[1],gearConstraint.actuatedRevolute_b.cylinderColor[3],gearConstraint.actuatedRevolute_b.cylinderColor[2],gearConstraint.actuatedRevolute_b.cylinderColor[1],gearConstraint.actuatedRevolute_a.cylinderColor[3],gearConstraint.actuatedRevolute_a.cylinderColor[2],gearConstraint.actuatedRevolute_a.cylinderColor[1]) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (834): * Single equations (assignments): 829 * Array equations: 3 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(3,31,77.8%), (1,5,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.006551/0.9196, allocations: 2.57 MB / 0.7254 GB, free: 1.238 MB / 0.5606 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001216/0.9208, allocations: 434.4 kB / 0.7258 GB, free: 0.8086 MB / 0.5606 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01004/0.9309, allocations: 4.617 MB / 0.7303 GB, free: 12.17 MB / 0.5762 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.182e-05/0.9309, allocations: 24 kB / 0.7303 GB, free: 12.14 MB / 0.5762 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.433e-05/0.931, allocations: 8 kB / 0.7303 GB, free: 12.14 MB / 0.5762 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.429e-05/0.931, allocations: 7.969 kB / 0.7303 GB, free: 12.13 MB / 0.5762 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.02656/0.9576, allocations: 10.44 MB / 0.7405 GB, free: 1.656 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.429e-05/0.9577, allocations: 4 kB / 0.7405 GB, free: 1.652 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001902/0.9596, allocations: 343.5 kB / 0.7408 GB, free: 1.316 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.004317/0.9639, allocations: 1.359 MB / 0.7422 GB, free: 15.95 MB / 0.5919 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0004818/0.9644, allocations: 39.98 kB / 0.7422 GB, free: 15.91 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0128/0.9772, allocations: 9.384 MB / 0.7514 GB, free: 6.25 MB / 0.5919 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.186e-06/0.9773, allocations: 0 / 0.7514 GB, free: 6.25 MB / 0.5919 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.3028/1.28, allocations: 7.569 MB / 0.7588 GB, free: 188.7 MB / 0.5919 GB Notification: Performance of postOpt removeConstants (simulation): time 0.003391/1.283, allocations: 0.7734 MB / 0.7595 GB, free: 188.6 MB / 0.5919 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001357/1.285, allocations: 35.8 kB / 0.7596 GB, free: 188.6 MB / 0.5919 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002312/1.287, allocations: 129.6 kB / 0.7597 GB, free: 188.6 MB / 0.5919 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000498/1.288, allocations: 135.6 kB / 0.7598 GB, free: 188.6 MB / 0.5919 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001786/1.288, allocations: 58.77 kB / 0.7599 GB, free: 188.6 MB / 0.5919 GB Notification: Performance of sorting global known variables: time 0.007021/1.295, allocations: 3.047 MB / 0.7628 GB, free: 188.5 MB / 0.5919 GB Notification: Performance of sort global known variables: time 6.71e-07/1.295, allocations: 1.062 kB / 0.7628 GB, free: 188.5 MB / 0.5919 GB Notification: Performance of remove unused functions: time 0.008707/1.304, allocations: 1.261 MB / 0.7641 GB, free: 188.5 MB / 0.5919 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * Number of states: 4 (gearConstraint.actuatedRevolute_b.phi,gearConstraint.actuatedRevolute_b.w,inertia1.phi,inertia1.w) * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (169): * Single equations (assignments): 164 * Array equations: 3 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(1,27,100.0%), (1,3,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.0007083/1.304, allocations: 175 kB / 0.7642 GB, free: 188.4 MB / 0.5919 GB Notification: Performance of simCode: created initialization part: time 0.01265/1.317, allocations: 6.39 MB / 0.7705 GB, free: 188.1 MB / 0.5919 GB Notification: Performance of simCode: created event and clocks part: time 8.716e-06/1.317, allocations: 0 / 0.7705 GB, free: 188.1 MB / 0.5919 GB Notification: Performance of simCode: created simulation system equations: time 0.003872/1.321, allocations: 2.198 MB / 0.7726 GB, free: 187.7 MB / 0.5919 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.004273/1.325, allocations: 0.5549 MB / 0.7732 GB, free: 187.5 MB / 0.5919 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02369/1.349, allocations: 12.22 MB / 0.7851 GB, free: 182.4 MB / 0.5919 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.005548/1.355, allocations: 3.977 MB / 0.789 GB, free: 180.9 MB / 0.5919 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.00148/1.356, allocations: 332.1 kB / 0.7893 GB, free: 180.9 MB / 0.5919 GB Notification: Performance of SimCode: time 9.31e-07/1.356, allocations: 4 kB / 0.7893 GB, free: 180.9 MB / 0.5919 GB Notification: Performance of Templates: time 0.1335/1.49, allocations: 119.8 MB / 0.9063 GB, free: 67.88 MB / 0.5919 GB make -j1 -f ModelicaTest_3.2.3_ModelicaTest.MultiBody.Parts.Rotor1D.GearConstraint.makefile (rm -f ModelicaTest_3.2.3_ModelicaTest.MultiBody.Parts.Rotor1D.GearConstraint.pipe ; mkfifo ModelicaTest_3.2.3_ModelicaTest.MultiBody.Parts.Rotor1D.GearConstraint.pipe ; head -c 1048576 < ModelicaTest_3.2.3_ModelicaTest.MultiBody.Parts.Rotor1D.GearConstraint.pipe >> ../files/ModelicaTest_3.2.3_ModelicaTest.MultiBody.Parts.Rotor1D.GearConstraint.sim & ./ModelicaTest_3.2.3_ModelicaTest.MultiBody.Parts.Rotor1D.GearConstraint -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS > ModelicaTest_3.2.3_ModelicaTest.MultiBody.Parts.Rotor1D.GearConstraint.pipe 2>&1) diffSimulationResults("ModelicaTest_3.2.3_ModelicaTest.MultiBody.Parts.Rotor1D.GearConstraint_res.mat","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v3.2.3+build.4/ModelicaTest/MultiBody/Parts/Rotor1D/GearConstraint/GearConstraint.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/ModelicaTest_3.2.3_ModelicaTest.MultiBody.Parts.Rotor1D.GearConstraint.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) Reference file matches